Home / 3,515.94-4,849.78-2,255.67

Finding the Fourth Proportional to 3,515.94, 4,849.78 and 2,255.67

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Solution

The fourth proportional to 3,515.94, 4,849.78 and 2,255.67 is: 3,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.94 : 4,849.78 = 2,255.67 : x
  2. Step 2: Convert to fraction form
    3,515.94/4,849.78 = 2,255.67/x
  3. Step 3: Cross multiply
    3,515.94x = 4,849.78 × 2,255.67
  4. Step 4: Simplify right side
    3,515.94x = 10,939,503.25
  5. Step 5: Solve for x
    x = 10,939,503.25/3,515.94
  6. Step 6: Final answer
    x = 3,111.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.